Make cc::CompositorFrames movable [Part 2 of 2]

cc/surfaces/surface_hittest.cc

Index: cc/surfaces/surface_hittest.cc
diff --git a/cc/surfaces/surface_hittest.cc b/cc/surfaces/surface_hittest.cc
index b9be19e3e827a03e5bd02b34f08e886f89824ecf..b56f976bbee708c743aceb3c7bf15dc3836f2952 100644
--- a/cc/surfaces/surface_hittest.cc
+++ b/cc/surfaces/surface_hittest.cc
@@ -234,12 +234,12 @@ const RenderPass* SurfaceHittest::GetRenderPassForSurfaceById(
   if (!surface)
     return nullptr;
 
-  const CompositorFrame* surface_frame = surface->GetEligibleFrame();
-  if (!surface_frame)
+  const CompositorFrame& surface_frame = surface->GetEligibleFrame();
+  if (!surface_frame.delegated_frame_data)
     return nullptr;
 
   const DelegatedFrameData* frame_data =
-      surface_frame->delegated_frame_data.get();
+      surface_frame.delegated_frame_data.get();
   if (frame_data->render_pass_list.empty())
     return nullptr;